Hi all
What is the general consensus for the best resolution for playing movies on the tablet considering the screen it comes with?
I am heading overseas shortly and so wanted to look at whether I convert some of my large movies to a smaller filesize and if I do what resolution is ideal.
That of course could lead on to the app people use for said conversion (but that is very subjective to each individual).
Cheers
Well since our screen supports 1080P i would say that is also the ideal resolution now I don't think that your movies are any higher resolution than that so it is also very subjective what resolution is 'optimal' it will always be a tradeoff between quality and filesize, personally I don't really see that much difference between 1080 and 720. With 480p I do really see a difference. But I would say that is sufficient for your trip.
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The ideal format for the XPERIA Tablet Z (and well any other modern tablet) is h.264 .mp4 AVC. The tablet's screen is WUXGA (1920x1200), so itnis perfect for 1080p. Sony's official whitepaper states the device supports up to 20Mbps, somI recommend encoding your video to that bit rate for maximum quality. A bit rate of 15Mbps is also a good compromise if you still want high quality, while 11.5Mbps is still ideal. 7.5Mbps 720p is also suitable if you dont mind sacrificing some quality.
I have an eye for low quality, but if you are dealing with feature length live action movies here, handbraking them to 10Mbps h264 1070p should do.
I myself use 15Mbps. I can provide a screencap of a 15Mbps video on the tablet if you want one.
Related
My understanding is that the XDA2 BackPack has a TV output of 640x480 pixels, which compared to full PAL resolution of 720x576 (or 720x480 NTSC) isn't that far off.
I can encode a full length DivX movie from a DVD at 640x480 and it will fix on my soon to arrive 1GB Secure Digital card quite easily at superb quality. What I'm thinking is, will I be able to output from the XDA2, using the backpack, to the TV, and play a 640x480 DivX movie streaming from the XDA2? Or is the TV output restricted to applications that support it only? (Such as Powerpoint, etc)
Are you sure the XDA II can play a 640x480 movie smoothly?
Not at all; after creating this topic I've read multiple times that the XDA2 outputs 2-5fps via the backpack - I guess it only needs to create an output at that frequency when working with powerpoint presentations.
A little disappointing for a 400MHz processor, but I suppose it all comes down to the GPU, or lack of...
ya... I was looking at some benchmarks for the h6300 which included the XDA II; needless to say, the XDA II didn't do too well in the graphics benchmarks
Url ?
I think those graphic benchmarks focus on applications or games, otherwise I can't explain why the xda II is always getting bad marks. We shouldn't forget that the ati imageon chip is designed exactly for playing mpeg4, and if you got players like BetaPlayer you can see the difference when you switch the ati support on and off.
If the video is not much larger than 320x240, it can be downsized and is still running smoothly on the display. Sadly you have to reencode your movies, but it only takes one hour or so in virtual dub.
Now I think your 1 GB storage card won't be very useful when it comes to movies...
Another thing, I'm not entirely sure but I suspect the speed of the sd slot isn't fast enough to play movies beyond 800 kBit or so. So even if the cpu/gpu was fast enough, there would be no way to play most movies with variable bitrate, occasionally exceeding lets say 1200 kbit.
For those reasons, I think even if the backpack did it, I don't think you could watch movies on a big screen.
However, it's disappointing if even the 320x240 don't work, which run smoothly on the ppc display and are comparable to vhs quality. I can't test it but I get this impression from what I read here.
so is the backpack not a good investment if i wana play some videos on a tv/monitor? dose wmv make any diffrence? and would it work better on a xda 3? sounds silly but @ £60+ i wana know what ill be getting.
xdaIIi
Hello guys I've been converting my videos to 800x480 for awhile and their all fine. I was wondering if I convert them to 1920x1080 would there be a significant difference since the SGSII's native resolution is 800x480. Thanks for answering my question. Oh yeah the resolution the videos come in are usually low quality like 704x400 usually in .rmvb format. Sometimes I do download 720p videos and convert them to 800x480.
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I've been converting mine as well, no difference at all. I just maintain the bitrate and it also reduces the file size.
GS II's screen resolution is 480x800. So anything above that resolution is practically meaningless, let alone 720P or 1080P.
Regards.
I can argue about that.
1689600
couldnt resist
Just wondering...else I have to convert to 480p
Yes it supports 720p (and 1080p) movies.
you guys have to always remember that what it supports and what it can do flawlessly are two separate things....
720p videos films are playable but not the smoothest.
actually,For me,720p and 1080p vids played quite smoothly (maybe a tad slower than my iphone4 but nothing notable really)
Interesting, I didn't even try 720p. Good to know it works, but really it generally would be worth your time to convert. Huge waste of space if you don't plan on deleting it right after viewing.
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link68759 said:
Interesting, I didn't even try 720p. Good to know it works, but really it generally would be worth your time to convert. Huge waste of space if you don't plan on deleting it right after viewing.
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Yup I had to convert a 2.5 gb vid from avi to mp4 and it was about 3.7gb
VeryCoolAlan said:
Yup I had to convert a 2.5 gb vid from avi to mp4 and it was about 3.7gb
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I assume you used Zune to convert it, if the end file ended up being bigger than the original.
A properly transcoded video would be significantly smaller: a 720p video has 921600 pixels per frame, as opposed to the resolution of our Titans; 480x800. A wvga video only needs 384000 pixels per frame. Therefore a 720p video is roughly 2.4x larger than it needs to be as our screens cannot display pixels it doesn't have (and that's not even taking bit rate into account). The quality will actually be slightly worse on a 720p video because it will have to be scaled down to play on the screen, whereas a properly transcoded video would be 1:1 with the pixels on the screen.
I mentioned bit rate; I don't really know what a good marker for bit rate is, but when transcoding to a smaller resolution, you don't want to keep the original bit rate: that has to go down too. Bit rate plays into file size significantly, so in reality any 720p video is much more than 2.4x bigger than it needs to be.
I guess one of these days I'll play around with a transcoder and make a thread about how to properly convert a video for WP7.
So I just bought a Homido to use with the nexus 6p. It's fun but the resulting image isnt too sharp. I think this is because demo movies are 1080p generally and since our phone is quite big, the resulting image isnt too sharp. I wonder if someone knows a source for 1440p or 4k SBS movies to demo ? I couldnt find any myself. Not youtube but real movies for download, shot in QHD or UHD. Please share if you've found something in this thread, thanks !
Actually I'm starting to think there's currently just *no* SBS content higher than 1080p, even on the torrents I can't find anything higher than 1080p, that's quite a bummer ... Still, if someone knows a demo or something >1080p, please do share !
Actually so it seems the SBS format only goes up to 1080p24 ... Just starting to look into this, but wondering now if there's a format that supports higher resolutions ?
*EDIT* also just found this article, the makers of the Oculus rift say that 8k resolution per eye is needed to truely get rid of pixelation: http://arstechnica.com/gaming/2013/...esolution-per-eye-isnt-enough-for-perfect-vr/ and the article makes a point that you need even a multiple of that to get rid of aliasing.
Oh and 500 fps, hehe.
That seems still quite a few years away, lol.
Currently virtual reality is interesting but I understand now we're still quite a few (probably 10) years away from hardware that can generate a really good VR experience. 1080p24 just isn't it....
To answer my own question:
Full SBS = 3840 x 1080 which exists but requires specialist playback equipment
Half SBS = 1920 x 1080 which is very widespread and also of course broadcast-able.
So Full SBS is actually 1080p *per eye*, so our display cant yield true full SBS unfortunately.
I ve tried wm size command but it no longer work since it is Android 12.
KukusKufy said:
I ve tried wm size command but it no longer work since it is Android 12.
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Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
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I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
KukusKufy said:
I just never see it enable 4K even I m viewing images with gallery app.
So I just want to force it for better experience.
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I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
ov_darkness said:
I'm not convinced, if this would be visible. Probably depends on your visual acuity.
Mine is not the best, and for the life of me I can't see the difference between 1440p and 1080p on such a small screen.
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There IS it, I ve paid for it, and I WANT it.
And experience will be different for me when viewing large size image in 1:1 scale.
It is just like refresh rate, since there r people cannot get the difference between 120hz and 60hz(or lower). But you cannot just disable higher refresh rate FOREVER just because there r some people cannot distingurish.
ov_darkness said:
Is there any merit to doing that?
I'm middle aged and with not-so-good eyesight, but fhd for me is more than enough.
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It's also to remove unnecessary downscale/upscale when watching a 4k movie. Since most app view the screen as a QHD one, VLC for example, will render a 4k video as a QHD one by downscaling it, then the phone will upscale it back to 4K.
Sure you will probably not see a lot of difference with native 4k as the upscaling technology from Sony is pretty good and you still have the 4K screen resolution giving extra sharpness.
Also, what some people seems to forget, is that the image displayed will always be 4K on this screen, a FHD image will be upscaled to 4K by the phone, and the higher pixel density make it far better than the same FHD content on a QHD screen especially for AMOLED screen that are somewhat blurry on the edge due to the subpixels arrangement.
This being said, you can put the screen in native resolution all the time, just going in the developper option and setting the screen minimal width to 1644pixels to match the 1644*3840 pixel resolution. Doing this, VLC that I tried perfectly render a movie in 4K, but your overall UI is ****ed up and you can barely use the phone. That's not what is wanted. Sony is just boring us for 4 generation with its 4k white list apps. I don't even know what is the recommanded app to watch their 4k HDR spiderman extract.
It's stated that the screen only runs at 4k in certain apps and scenarios, Theres no option to change that.
More accurately: The phone only render graphic at 4k in certain apps and scenarios*
The screen always runs at 4K since it's hardware and number of pixels can't physically be changed. The phone upscale every content to 4K all the time but render some whitelisted app directely in 4K. Still better than proper 2K as the pixels are smaller, but also mean your 4K videos on VLC will be downscaled to 2K by VLC then upscaled back to 4K by the phone, only because Sony didn't whitelist VLC that is perfectly able to run native 4K.
I almost have the same question, but instead of 4K I want to set a global 2K resolution.
4K is way too overkill, but 2K is the best middle ground between display clarity and battery life.
that is what you basically have, 99% of the time your phone won't render 4k. Doing that for all scenarios in which things are rendered in 4k would make absolutely zero sense because then they would need to be upscaled again to fit the 4k reselution